About the Number

138389888

138389887 ← → 138389889

2進数表記:1000001111111010100110000000

漢数字表記:一億三千八百三十八万九千八百八十八

素因数分解:

2 7 × 7 1 × 13 1 × 109 2

素因数の和:252
約数の個数: 96
約数和(自身を含む): 342462960
約数和(自身を除く): 204073072

約数列:
[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 52, 56, 64, 91, 104, 109, 112, 128, 182, 208, 218, 224, 364, 416, 436, 448, 728, 763, 832, 872, 896, 1417, 1456, 1526, 1664, 1744, 2834, 2912, 3052, 3488, 5668, 5824, 6104, 6976, 9919, 11336, 11648, 11881, 12208, 13952, 19838, 22672, 23762, 24416, 39676, 45344, 47524, 48832, 79352, 83167, 90688, 95048, 97664, 154453, 158704, 166334, 181376, 190096, 308906, 317408, 332668, 380192, 617812, 634816, 665336, 760384, 1081171, 1235624, 1269632, 1330672, 1520768, 2162342, 2471248, 2661344, 4324684, 4942496, 5322688, 8649368, 9884992, 10645376, 17298736, 19769984, 34597472, 69194944, 138389888]

約数ペア:
[(1, 138389888), (2, 69194944), (4, 34597472), (7, 19769984), (8, 17298736), (13, 10645376), (14, 9884992), (16, 8649368), (26, 5322688), (28, 4942496), (32, 4324684), (52, 2661344), (56, 2471248), (64, 2162342), (91, 1520768), (104, 1330672), (109, 1269632), (112, 1235624), (128, 1081171), (182, 760384), (208, 665336), (218, 634816), (224, 617812), (364, 380192), (416, 332668), (436, 317408), (448, 308906), (728, 190096), (763, 181376), (832, 166334), (872, 158704), (896, 154453), (1417, 97664), (1456, 95048), (1526, 90688), (1664, 83167), (1744, 79352), (2834, 48832), (2912, 47524), (3052, 45344), (3488, 39676), (5668, 24416), (5824, 23762), (6104, 22672), (6976, 19838), (9919, 13952), (11336, 12208), (11648, 11881)]

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